Publication detail

A Practical Approach for the Calculation of the Activation Energy of the Sintering

POUCHLÝ, V. HRUBÝ, J. MACA, K.

Original Title

A Practical Approach for the Calculation of the Activation Energy of the Sintering

English Title

A Practical Approach for the Calculation of the Activation Energy of the Sintering

Type

journal article in Web of Science

Language

en

Original Abstract

Newly developed software for calculation of activation energy (Qs in the following) of sintering using the Wang and Raj model is presented. To demonstrate the practical potential of the software and to evaluate the behaviour of the Qs during the sintering process, alumina and cubic zirconia ceramic compacts were prepared from nanometric powders. The results obtained with both materials are in agreement with previously published data calculated by different approaches. In the interval of interest (relative densities from 60 % to almost 100 % of theoretical density), both materials show similar behaviour. Three distinct regions can be seen: the initial constant values of Qs 868 kJ/mol and 762 kJ/mol for alumina and cubic zirconia, respectively; a region containing linear drop of Qs and the final region of constant Qs values 625 kJ/mol and 645 kJ/mol for alumina and cubic zirconia, respectively.

English abstract

Newly developed software for calculation of activation energy (Qs in the following) of sintering using the Wang and Raj model is presented. To demonstrate the practical potential of the software and to evaluate the behaviour of the Qs during the sintering process, alumina and cubic zirconia ceramic compacts were prepared from nanometric powders. The results obtained with both materials are in agreement with previously published data calculated by different approaches. In the interval of interest (relative densities from 60 % to almost 100 % of theoretical density), both materials show similar behaviour. Three distinct regions can be seen: the initial constant values of Qs 868 kJ/mol and 762 kJ/mol for alumina and cubic zirconia, respectively; a region containing linear drop of Qs and the final region of constant Qs values 625 kJ/mol and 645 kJ/mol for alumina and cubic zirconia, respectively.

Keywords

Sintering, Activation energy, Alumina, Zirconia

Released

15.12.2016

Publisher

International Institute for the Science of Sintering

ISBN

0350-820X

Periodical

Science of Sintering

Year of study

48

Number

3

State

RS

Pages from

317

Pages to

324

Pages count

8

URL

Full text in the Digital Library

Documents

BibTex


@article{BUT130451,
  author="Václav {Pouchlý} and Jan {Hrubý} and Karel {Maca}",
  title="A Practical Approach for the Calculation of the Activation Energy of the Sintering",
  annote="Newly developed software for calculation of activation energy (Qs in the following) of
sintering using the Wang and Raj model is presented. To demonstrate the practical potential
of the software and to evaluate the behaviour of the Qs during the sintering process, alumina
and cubic zirconia ceramic compacts were prepared from nanometric powders. The results
obtained with both materials are in agreement with previously published data calculated by
different approaches. In the interval of interest (relative densities from 60 % to almost 100 %
of theoretical density), both materials show similar behaviour. Three distinct regions can be
seen: the initial constant values of Qs 868 kJ/mol and 762 kJ/mol for alumina and cubic
zirconia, respectively; a region containing linear drop of Qs and the final region of constant
Qs values 625 kJ/mol and 645 kJ/mol for alumina and cubic zirconia, respectively.",
  address="International Institute for the Science of Sintering",
  chapter="130451",
  doi="10.2298/SOS1603317P",
  howpublished="print",
  institution="International Institute for the Science of Sintering",
  number="3",
  volume="48",
  year="2016",
  month="december",
  pages="317--324",
  publisher="International Institute for the Science of Sintering",
  type="journal article in Web of Science"
}